啊，我找到了。

您可以使用after_setup_theme 行动挂钩。所以它会像

add_action(\'after_setup_theme\', [\'\\Recruitment\\recruitment\', \'create_table\']);

$theme = wp_get_theme();

if ( $theme->name == \'My THEME NAME\' ) {

  global $wpdb;
  global $charset_collate;

  $sql = "CREATE TABLE IF NOT EXISTS ... $charset_collate;";

  require_once ABSPATH . \'wp-admin/includes/upgrade.php\';
  dbDelta( $sql );

  add_option( \'ab_db_version\', self::$db_version );

}

// in another file

add_action(\'after_switch_theme\', [\'\\Recruitment\\recruitment\', \'create_table\']);